> I get that Facebook keeps being compared to cigarette companies under the whole addiction narrative, but lets not forget the big reason cigarettes aren't marketed to children; they kill a lot of people, and perhaps most distressing, they kill people who don't smoke them. They are also physically addictive; this is a big issue.

It's not quite the same level, but we're finding increasing evidence that Facebook and general social media use is associated with increased anxiety and depression [1]. Since depression is now the leading source of disability world-wide, the comparison is not entirely overblown.

I do like and agree with your alternate example of Valentine's Day.

[1] https://psychnews.psychiatryonline.org/doi/full/10.1176/appi...

[2] http://www.who.int/mediacentre/factsheets/fs369/en/